Test strip for biological component measurement and manufacturing method thereof

A test strip for biological component measurement includes a substrate. A pair of a working electrode and a counter electrode, a sensor unit that produces an electrochemical reaction with a bodily fluid of a measurement subject and produces a change in electrical characteristics, a resistance portion having an electrical resistance expressing attribute information including a sensitivity of the test strip, and a pair of wires connected to both ends of the resistance portion are provided on the substrate. The resistance portion has a plurality of narrow patterns, each having a resistivity and provided so as to be distanced from each other. An end portion of each narrow pattern is near another narrow pattern. A substantially circular pattern is provided to overlap locations where the end portions of the narrow patterns are near each other, enabling the end portions to conduct with each other.